Best Adjustable Mattress 2024. Best adjustable bed bases & frames 2024. Adjustable bed, or adjustable base, is a customizable bed frame that allows sleepers to alter the position of their mattress in a way that neutrally (and properly) aligns the spine.

We rated brands like saatva, casper, leesa, and more. If you want to try an adjustable bed, do note that you’ll need both an adjustable base and a compatible mattress.